I am not too sure why the sunflower oil has been added to the product, as mackerel in itself is an oily fish and for my own tastes, it can do without more.I quite likely will buy this product again, but I think I shall tip the whole of the juice away first before eating instead of just some, as it really is far too thin - and that for me is the feature which stops Epicure Mackerel Fillets In Tomato